EISCO 3-Finger Lab Clamp with Bosshead Clamp Holder for Lab Stand Rod - PVC Coated Prongs for Holding Objects up to 3.5" Diameter - Beaker Holder, Flask Clamp with Swivel Boss Head
Die casted alloy clamp retort, PVC coated jaws with boss head which accommodates rods up to 15 mm in diameter. Jaws have a capacity of 90 mm.